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https://github.com/go-gitea/gitea.git
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fcb535c5c3
This PR fixes #7598 by providing a configurable way of signing commits across the Gitea instance. Per repository configurability and import/generation of trusted secure keys is not provided by this PR - from a security PoV that's probably impossible to do properly. Similarly web-signing, that is asking the user to sign something, is not implemented - this could be done at a later stage however. ## Features - [x] If commit.gpgsign is set in .gitconfig sign commits and files created through repofiles. (merges should already have been signed.) - [x] Verify commits signed with the default gpg as valid - [x] Signer, Committer and Author can all be different - [x] Allow signer to be arbitrarily different - We still require the key to have an activated email on Gitea. A more complete implementation would be to use a keyserver and mark external-or-unactivated with an "unknown" trust level icon. - [x] Add a signing-key.gpg endpoint to get the default gpg pub key if available - Rather than add a fake web-flow user I've added this as an endpoint on /api/v1/signing-key.gpg - [x] Try to match the default key with a user on gitea - this is done at verification time - [x] Make things configurable? - app.ini configuration done - [x] when checking commits are signed need to check if they're actually verifiable too - [x] Add documentation I have decided that adjusting the docker to create a default gpg key is not the correct thing to do and therefore have not implemented this.
60 lines
1.8 KiB
Go
60 lines
1.8 KiB
Go
// Copyright 2015 The Gogs Authors. All rights reserved.
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// Copyright 2017 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package git
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import (
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"fmt"
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"strings"
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"code.gitea.io/gitea/modules/process"
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)
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// LoadPublicKeyContent will load the key from gpg
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func (gpgSettings *GPGSettings) LoadPublicKeyContent() error {
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content, stderr, err := process.GetManager().Exec(
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"gpg -a --export",
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"gpg", "-a", "--export", gpgSettings.KeyID)
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if err != nil {
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return fmt.Errorf("Unable to get default signing key: %s, %s, %v", gpgSettings.KeyID, stderr, err)
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}
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gpgSettings.PublicKeyContent = content
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return nil
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}
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// GetDefaultPublicGPGKey will return and cache the default public GPG settings for this repository
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func (repo *Repository) GetDefaultPublicGPGKey(forceUpdate bool) (*GPGSettings, error) {
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if repo.gpgSettings != nil && !forceUpdate {
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return repo.gpgSettings, nil
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}
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gpgSettings := &GPGSettings{
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Sign: true,
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}
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value, _ := NewCommand("config", "--get", "commit.gpgsign").RunInDir(repo.Path)
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sign, valid := ParseBool(strings.TrimSpace(value))
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if !sign || !valid {
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gpgSettings.Sign = false
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repo.gpgSettings = gpgSettings
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return gpgSettings, nil
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}
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signingKey, _ := NewCommand("config", "--get", "user.signingkey").RunInDir(repo.Path)
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gpgSettings.KeyID = strings.TrimSpace(signingKey)
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defaultEmail, _ := NewCommand("config", "--get", "user.email").RunInDir(repo.Path)
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gpgSettings.Email = strings.TrimSpace(defaultEmail)
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defaultName, _ := NewCommand("config", "--get", "user.name").RunInDir(repo.Path)
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gpgSettings.Name = strings.TrimSpace(defaultName)
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if err := gpgSettings.LoadPublicKeyContent(); err != nil {
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return nil, err
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}
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repo.gpgSettings = gpgSettings
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return repo.gpgSettings, nil
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}
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